If you want to use big melee weapons, practice hanging back, then veering ahead far enough to hit your enemy with your weapon. Then, drift back. This makes the most of your weapons' superior reach and keeps you away from your opponents' quicker weapons.
-As with all guns, it is best to save the revolver for fights against several enemies (or against exceptionally tough loners). Particularly weak enemies can be taken out with a combination of Taser and kicks instead.
-There are weapons in almost all recycling bins, so be sure to check them!